Indian Bank — refund processed but money not credited

Address:

Karimnagar, Andhra Pradesh, 505460

I have cancelled an order from amazon on[protected] and received an mail from amazon that the refund has been processed successfully and it would be reflected by[protected] ie between 3-5 business days, but still i have not received the money. When i spoke with an amazon associate he said i have to fill a "charge dispute form" because it could be a problem at my bank side. I also contacted my banks customer care many a time but the say that problem could only be resolved by visiting my branch.
My refund reference number is #7be7kjdy0000k78h7k56